Results 31 to 40 of about 1,349,657 (273)
Руды и металлыBased on the study of rutile and cassiterite grains, using Fourier transform infrared microscopy, a new method for their determination in heavy mineral concentrate samples has been developed.
Khachatryan G. K., Anashkina N. E.
doaj +1 more source
Analysis of Infrared Spectral Radiance of O2 1.27 μm Band Based on Space-Based Limb Detection
Remote Sensing, 2023 The infrared spectral radiance of O2 is of great significance for space-based infrared detection. In this work, based on the demand for near-infrared spectral radiance of O2 limb detection, a method of spectral radiance calculation coupled with an ...
Jingyu Bai +4 more
doaj +1 more source
Long-Term X-ray Spectral Variability in Seyfert 1 Galaxies
, 2003 Direct time-resolved spectral fitting has been performed on continuous RXTE monitoring of seven Seyfert 1 galaxies in order to study their broadband spectral variability and Fe K alpha variability characteristics on time scales of days to years ...
A. Markowitz +11 more
core +1 more source
The molecular emission-line spectrum of IRC +10216 between 330 and 358 GHz [PDF]
, 1994 We have conducted a spectral line survey of IRC + 10216 using the Caltech Submillimeter Observatory to an average sensitivity of ≾95 mK. A deconvolution algorithm has been used to derive the continuous single-sideband spectrum from 330.2 to 358.1 GHz ...
Blake, Geoffrey A. +2 more
core +1 more source
Infrared Spectroscopy of RNA Nucleosides in a Wide Range of Temperatures
LifeThe RNA world hypothesis suggests that early cellular ancestors relied solely on RNA molecules for both genetic information storage and cellular functions.
Susana Iglesias-Groth +2 more
doaj +1 more source
On the complete integrability of the discrete Nahm equations
, 1999 The discrete Nahm equations, a system of matrix valued difference equations, arose in the work of Braam and Austin on half-integral mass hyperbolic monopoles. We show that the discrete Nahm equations are completely integrable in a natural sense: to any
Murray, Michael K., Singer, Michael A.
core +1 more source
A Process for On-Line Spectral Analysis
Measurement + Control, 1969 As a modest contribution to the development of more problem-oriented control solutions, a simple on-line spectral-analysis process is presented and some of its possible applications discussed.
E. Moseley MSc, CEng, MIEE
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu +8 more
wiley +1 more source
The X-Ray Spectral Variability of Mrk 766 [PDF]
, 1996 Analysis results from ASCA and ROSAT observations of the narrow-line Seyfert 1 galaxy Mrk 766 are reported. In the ASCA observation we observed rapid variability with a doubling time scale of 1000 seconds.
Edelson, R. +4 more
core +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi +5 more
wiley +1 more source